RFC 4072S
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PHOENIX CONTACT 108580_en_02
8.7 DEVICE_STATE
The DEVICE_STATE system variable uses the DEVICE_STATE_4xxx_TYPE structure to
provide information about the temperature of the processor board, the optional fan module,
and the processor load.
8.8 Task handling
Programs and program parts are treated as tasks in PLCnext Engineer. Individual tasks are
coordinated and processed in the Execution and Synchronization Manager (ESM). The
ESM_DATA system variable uses the ESM_DAT structure to provide information about task
handling of the ESM:
Table 8-13 DEVICE_STATE system variable and elements of the DEVICE_STATE_4xxx_TYPE structure
System variable/elements Ty pe Meaning
DEVICE_STATE DEVICE_STATE_4xxx_TYPE The system variable provides the information in the
DEVICE_STATE_4xxx_TYPE structure.
BOARD_TEMPERATURE SINT Currently measured temperature of the processor
board.
Internal device temperature in degrees Celsius
FAN_FAIL BOOL The fan is defective.
RAMDISK_USAGE USINT Memory used on the RAM disk
CPU_LOAD_ALL_CORES USINT Current processor load of the system (average
expressed as percentage)
CPU_LOAD_PER_CORE Information about the load per processor core
[1] USINT Current processor load of CPU 1 (percentage)
[2] USINT Current processor load of CPU 2 (percentage)
NOTE: Device defect due to overheating
• Immediately replace the fan when the
defect occurs.
Table 8-14 ESM_DATA system variable for task handling and elements of the ESM_DAT structure
System variable/elements Typ e Meaning
ESM_DATA ESM_DAT Information about task handling of Execution and Syn-
chronization Manager for both processor cores of the
RFC
ESM_COUNT USINT Number of the ESM (one ESM for each processor core)
ESM_INFOS Information on ESMs [1 … 2]
[1] … [2]
TASK_COUNT UINT Number of tasks that have been configured for the ESM
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